Jane Street’s Roundhill MSTR WeeklyPay ETF MSTW Stock Holding History

Jane Street’s Portfolio MSTW Stock Details MSTW Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$547K	Buy	+172,698	New	+$1.17M	﹤0.01%	7797
2026 Q1	–	Sell	-99,661	Closed	-$978K	–	13542
2025 Q4	$978K	Buy	+99,661	New	+$1.88M	﹤0.01%	6172

Other funds holding MSTW

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

OMC

Old Mission Capital Chicago, Illinois $6.31B AUM 20.77% 1-Year Est. Return

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

Group One Trading Chicago, Illinois $71.1B AUM 128.96% 1-Year Est. Return

Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Jane Street's MSTW Position: Q2 2026 in Review

Jane Street opened a new position in Roundhill MSTR WeeklyPay ETF (MSTW) in Q2 2026: 172,698 shares worth $547K. The stake represents ﹤0.01% of the portfolio and ranks #7797 among its holdings. This is a return to the name: Jane Street previously reported a position in MSTW as recently as Q4 2025.

Jane Street first reported a position in MSTW in Q4 2025 and has held it in 2 quarters since. The position peaked at $978K in Q4 2025. 7 funds tracked by Wall St. Rank hold MSTW as of Q2 2026.

Jane Street held 172,698 shares of Roundhill MSTR WeeklyPay ETF worth $547K as of Q2 2026.
Roundhill MSTR WeeklyPay ETF was a new Jane Street position in Q2 2026.
Roundhill MSTR WeeklyPay ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7797 holding.
Jane Street first reported a position in Roundhill MSTR WeeklyPay ETF in Q4 2025 and has held it in 2 quarters since.
Jane Street's Roundhill MSTR WeeklyPay ETF position peaked at $978K in Q4 2025.
7 funds tracked by Wall St. Rank held Roundhill MSTR WeeklyPay ETF as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.